4539520 has 64 divisors (see below), whose sum is σ = 11181240. Its totient is φ = 1761280.

The previous prime is 4539517. The next prime is 4539541. The reversal of 4539520 is 259354.

It can be written as a sum of positive squares in 4 ways, for example, as 3474496 + 1065024 = 1864^2 + 1032^2 .

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26154 + ... + 26326.

Almost surely, 2^4539520 is an apocalyptic number.

4539520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4539520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5590620).

4539520 is an abundant number, since it is smaller than the sum of its proper divisors (6641720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4539520 is a wasteful number, since it uses less digits than its factorization.

4539520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233 (or 221 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 4539520 is about 2130.6149347078. The cubic root of 4539520 is about 165.5782587933.

The spelling of 4539520 in words is "four million, five hundred thirty-nine thousand, five hundred twenty".